Pipe reamer



Feb. 10, 1931. w W 'V0SPER 1,791,649

PIPE REAMER Filed Aug. 2, 1928 LJQLMM MTM w mf @www 4rammed Feb. 10 1931: Y

ntum-'1131 STAT/Es] raft.

WILLIAM W.

y Referring to the dra-Wings :V

of the invention in a pipe reamer;

' MACHINE co., oE'ToLEno, omo, AcoEroEATIoN0E oHIo PIPE EEAMEE v 'replication iea'auguskt 2,1928. seriiarNo. 296,887.

This invention relates to `vcutting tools. VvThis invention has utility when incorporated in tapered reamers torremoving the bur from tubular pieces,`as pipe. i

- Fig. 1 is a side elevation ofanernbodiment Fig. 2 isa vienT looking into the rearner i 'from' the let of Fig. 1;

Fig. 3 is a View from the right oi Fig. 1';

- Fig. 4 isa section "on the line IV-I Fig. 2;

Fig. 5 is a section on the line 174V, 4; perspective view of a blanlrfor Fig.v 6 is a Y a cutting bar; and

' Fig. 7 is a view of thecutting baras produced Vfrom the blank of Fig... 6. Y

Blank 1 with bur or roughedges 2 may be oi the desired metal to provide cutting blades. i-Severing thereof by diagonal cut produces Vcr-.tting edge line 3. These bars or cutting handle 18 toengageseat`12 inthe cuttingbar Y; i i

support 8 of the reamer proper.y Y

By oscillating handle 21 of the paWl carrier 16, paWl 22 inay beeffective inits coac tionpwiththe ratchet 14 .for giving a clock- VWise rotation tothe reamerj vfor causing. the

cuttingedgesl'll to act on the interior 'of the pipe as directed bythe handle 18. 'i

P.ATENrolf.Ifile VOSPER, 0F '.roLEEo, oHIo, Assis-Non To THE TOLEDQ 'PIPE THEEADIIIG This -is a compact substantial assembly of the reamerfor effective operation.

itc

'Y .What is Claimed and it is desired .to secure v fj, byUnited- StateS'Letters. Patent is reaniencomprising an annular' series of' divergingblades terminating in seats, a ring I in said seats, yand* a ,toolY body o'f-.dissiinilar material l partially enibedding the .blades and fully-*embedding the ring. i y AIn Witness Whereofl affix my signature.y 'l

. vWILLIAM W. vosPER.

blades each may have the narrower terminus L dressed for intertting seat portion 5 as the converging region While the diverging Inayorportion 1s provided With circumferentlal spacing seat 6. This seat may be-engaged by wire ring 7 with the bars nestingat the seat portions 5. As so assembled ina moldv and molten metal entering 'thereabout, theV bars are'anchored bydie casting 8 inproviding a support with the bars thus imbedded and anchored. This casting 8 as more readily molten than the bars andhas region -9 With greater clearance from the bar edge than i oppositeV region 10` Withthe edge ofthe bar on the side 9 being that in the 'direction in which the rea-nier is desired'` to operate and thus provide clearance for the cut out.v Portion 10 is a reinforcing backing for'the cutting bar. As so assembled in the support, the Vline 3 is dressed to provide cutting edge 11.

This cutting bar or blade carrying supportas an actuator is provided axially with inf ternally threadedseat 12 centrally through larger diameter terniinallange 13. Ratchet 14 having central opening y15 `therethrough may have'paWl carrier 16 as a lever assembled thereon by slipping over-this ratchet with flange 17 of handle 18 assembled therewith by means of bolt '19 through opening 2O in the 

